Preparing method of block amorphous ring type magnetic core

A toroidal, amorphous technology, applied in the direction of transformer/inductor core, inductor/transformer/magnet manufacturing, inorganic material magnetism, etc. problems such as the influence of working magnetic properties, to achieve the effect of easy implementation, less surface defects, and improved space factor

Inactive Publication Date: 2007-05-30
BEIHANG UNIV
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Problems solved by technology

Compared with traditional silicon steel, although it does not require cold rolling, which reduces a lot of processing procedures, it has great advantages, but there are also certain problems, such as the thickness of the strip is very thin, only tens of microns, which is ten times that of silicon steel sheet. One, which affects the space factor of the transformer core; on the other hand, the surface quality of the strip is not easy to control, and it is not easy to process and improve if there is a problem, resulting in the influence of the working magnetic performance

Method used

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  • Preparing method of block amorphous ring type magnetic core
  • Preparing method of block amorphous ring type magnetic core

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preparation example Construction

[0011] The preparation method of the present invention is specifically as follows:

[0012] (1) Weigh each element

[0013] Calculate the weight of each element related to it according to the number of atoms required;

[0014] (2) Melting master alloy

[0015] Put the required raw materials weighed in step (1) into the vacuum high-frequency induction smelting furnace, and adjust the vacuum degree to 1~8×10 -3 Pa, filled with argon protective gas, the argon pressure is 0.01-0.08MPa; the current is adjusted to 15-25A, the induction temperature is 1000-1600°C; the melting time is 5-10min, and the master alloy is taken out after cooling with the furnace;

[0016] (3) Ring-shaped bulk amorphous alloy

[0017] Put the master alloy prepared in step (2) into the induction furnace of the rapid solidification device, and adjust the vacuum degree to 1~8×10 -3 Pa, filled with argon protective gas, the pressure of argon is 0.01-0.08MPa; the current is adjusted to 2-10A, the induction t...

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Abstract

This invention relates to block non-crystal magnetic core process method by use of copper module forging, which comprises the following steps: matching formula as the proportion by use of vacuum furnace for metalizing; then putting the parent alloy into sense furnace for melting to spray into copper module through copper forging to get non-crystal alloy ring block; by use of this invention magnetic core, it directly shapes by forging with good surface property through simple process.

Description

technical field [0001] The invention relates to a preparation method of a bulk amorphous alloy ring-type magnetic core mainly used in small transformers, inductors and the like. Background technique [0002] Small transformers or inductors usually require magnetic materials with high saturation magnetic induction intensity Bs, high magnetic permeability μ value, low iron loss P value, and low magnetostriction coefficient λ, so that the working Bs value is as high as possible, and the power factor is high. Low power consumption, high efficiency and reduced noise etc. Traditionally, silicon steel is the most common magnetic material used in this area. However, since the amorphous alloy material was developed and researched, because its saturation magnetic induction is close to that of silicon steel, and its loss is much lower than that of silicon steel, the excitation current does not exceed 10 times the normal value at 110% output voltage, and the excitation current is not g...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/02H01F1/14H01F27/24
Inventor 张涛刘凤娟李然逄淑杰马朝利
Owner BEIHANG UNIV
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